Following a successful fresh install or upgrade of Migration Manager 8.x to 8.14 it is observed that mailboxes synced to o365 or On Premises exchange servers will no longer switch, either manually or automatically.
The Console and examination of the EMWMigration.log will display errors including
Where the source is synced to On Premises Exchange server
2017-05-24 13:16:06.5969 PxA60 TxA A- C- M- Info OnComplete:Failed to Switch user. The operation is pending. AutodiscoverUserSetting.PublicFolderInformation
2017-05-24 13:20:08.3919 PxA60 Tx1 A- C- M- Info ===== End executing command 'Switch'
Where the source is synced to o365
2017-05-22 05:55:07.9273 PxCC8 TxB A- C- M- Error Quest.MigrationManager.Exchange.O365UserProvisioning.InsufficientMailboxPropertiesException: Cannot perform the 'Switch' or 'Undo Switch' operation for the mailbox, because the following required parameters are not set: targetPublicFolderEMailAddress. The operation is deferred until the next agent session.